In communications, Circuit Switched Data (CSD) is the original form of data transmission developed for the time-division multiple access (TDMA)-based mobile...

between calls. Public switched telephone network (PSTN) B channel of ISDN Circuit Switched Data (CSD) and High-Speed Circuit-Switched Data (HSCSD) service in...

communications, a PDN is a circuit- or packet-switched network that is available to the public and that can transmit data in digital form. A PDN provider...

A virtual circuit (VC) is a means of transporting data over a data network, based on packet switching and in which a connection is first established across...

it was the first local public packet-switched network in the United States. Datanet 1 was the public switched data network operated by the Dutch PTT Telecom...

call. Two circuit-switched data protocols are defined in the GSM standard: Circuit Switched Data (CSD) and High-Speed Circuit-Switched Data (HSCSD). These...

according to the total volume of data transferred during the billing cycle, in contrast with circuit switched data, which is usually billed per minute...

consisted of the circuit-switched core network, used for traditional GSM services such as voice calls, SMS, and circuit switched data calls. It was extended...

enterprise data networks. A leased line, private circuit, or dedicated circuit, is a circuit that is dedicated to only one use and is typically not switched at...

application examples are SONET/SDH and the ISDN circuit-switched B-channel, while TDMA examples are Circuit Switched Data used in early cellular voice services...